Answer:
variable overhead efficiency variance= $154.7 unfavorable
Explanation:
Giving the following information:
Production volume of 6,100 units
Budgeted variable overhead costs $13,500
Budgeted direct labor hours (DLHr) 610 hours
Actual:
Production volume of 4,100 units
Actual variable overhead costs $15,100
Actual direct labor hours (DLHr) 480 hours
First, we need to calculate the predetermined manufacturing overhead rate:
Estimated manufacturing overhead rate= total estimated overhead costs for the period/ total amount of allocation base
Estimated manufacturing overhead rate= 13,500/6,100= $2.21 per hour
Now, by using the following formula we can calculate the variable overhead efficiency variance:
variable overhead efficiency variance= (Standard Quantity - Actual Q)*Standard Rate
variable overhead efficiency variance= (0.1*4,100 - 480)*2.21= 154.7 unfavorable